(6R,7R)-7-Phenylacetamido-3-[(Z)-2-(4-methylthiazol-5-yl)ethenyl]-3-cephem-4-carboxylic Acid Diphenyl Methyl Ester CAS 112953-21-6
| CAS No. | 112953-21-6 |
| Molecular Formula | C34H29N3O4S2 |
| Molecular Weight | 607.74 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of (6R,7R)-7-Phenylacetamido-3-[(Z)-2-(4-methylthiazol-5-yl)ethenyl]-3-cephem-4-carboxylic Acid Diphenyl Methyl Ester is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies (6R,7R)-7-Phenylacetamido-3-[(Z)-2-(4-methylthiazol-5-yl)ethenyl]-3-cephem-4-carboxylic Acid Diphenyl Methyl Ester (CAS 112953-21-6), a certified reference material (molecular formula C34H29N3O4S2, MW 607.74 g/mol) for analytical method development and quality control.
Structurally, (6R,7R)-7-Phenylacetamido-3-[(Z)-2-(4-methylthiazol-5-yl)ethenyl]-3-cephem-4-carboxylic Acid Diphenyl Methyl Ester (C34H29N3O4S2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 22.0, corresponding to approximately 22 ring(s) or double-bond equivalent(s). With a molecular weight of 607.74 g/mol, it falls into the high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C34H29N3O4S2 |
| Molecular Weight | 607.74 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 22.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
Recommended Standards
- Bosentan impurity 17 (CAS CATO-C4X-156417)
- Etofenamate Palmitate (CAS 81427-95-4)
- Bosentan Impurity 01 (CAS 301646-60-6)
- Ranolazine Impurity 22 (CAS 2724549-66-8)
- 2-(2,6-Dimethylphenyl)isoquinolin-1(2H)-one (CAS 137515-86-7)
- N-(2H-Chromen-6-yl)acetamide (CAS 33143-94-1)
- 3-Cyclopropoxy-4-ethylpicolinic acid (CAS 1243329-11-4)
- 2-(Trifluoromethyl)-5-((trimethylsilyl)ethynyl)isonicotinaldehyde (CAS 1356087-40-5)
- Ethyl 10-oxoundecanoate (CAS 36651-38-4)
- [2,3'-Bipyridine]-5-carbaldehyde (CAS 179873-49-5)
- O-(2-morpholin-4-yl-ethyl)-hydroxyl Amine (CAS 42476-63-1)
- N-Me-DL-Phg-OH (CAS 74641-60-4)
- 4-Fluoro-3-(fluoromethyl)phenol (CAS 2842053-94-3)
- Semaglutide impurity 64 (CAS CATO-C4X-222664)
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